Fellied

A craft or item pertaining to neatness or precision; sleek; shiny; clean

We decided the book was new because its cover was sleek, and its typography was precise and fellied.

Fellied by Katherine Karsh March 12, 2017

Folie a deux 

Used with humor, as a simple statement, in a conversation when you strongly disagree with the majority. Originally a French term used in psychiatry to describe a mental disorder in which two or more associated persons share the same delusion. In other words, you are saying "The two of you share the same delusion." Translated "madness between two."

Two others state "G. Dub is an excellent public speaker." In your disagreement, you respond with "Folie a deux!"

Folie a deux by Michael Moyer August 12, 2006

Fullie 

A full beer. Used when you have finished a beer and want to replace an empty with a full beer

Hey, get rid of all these empties and bring me a fullie

Fullie by andypoirier September 7, 2013

Foolie 

It’s a synonym for buddy, dude or bro.
To talk nonsense or say something stupid.

“Aye wasgud foolie”, “foolie look tired”,

“What he said? Man stop talkin foolie”
“I ain’t gone lie man, a foolie hungry asf”

Foolie by Zeebo305 June 20, 2019

fillies and gentlecolts

Most prominently used in Lauren Faust's reincarnation of My Little Pony show, Friendship is Magic, and its fans who call themselves bronies. It is a pony-speak for "ladies and gentlemen", or more appropriately, "boys and girls". It is related to somepony, anypony, everypony, etc.

"Fillies and gentlecolts! As mayor of Ponyville, it is my great pleasure to announce the beginning of the Summer Sun Celebration!"

-Mayor of Ponyville, The Mare in the Moon pilot episode.

fillies and gentlecolts by nickodavincireborn April 23, 2011

follicly challenged 

Follicly challenged is merely the etymologically correct spelling of follically challenged, which is a euphemistic term for bald men. The use of the word serves to lampoon the perceived overabundance of "politically correct" synonyms for various minority groups, which first emerged and spread in the mid to late '90s.

My father is severely follicly challenged, but he's learned to cope without resorting to a toupee or a combover.

follicly challenged by glutagut January 13, 2008

Fillie 

fillie is the best FRIENDSHIP there is (finn wolfhard and millie bobby brown)

:)

omg they act so much like fillie

Fillie by strangerthings2 June 6, 2018